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October 2, 2014

October 2, 2014

Posted by **tasha** on Monday, February 19, 2007 at 2:05am.

According to the law of conservation of energy, the work required equals the change in potential emergy.

To get the increase in potential energy, multiply the weight (M g) by the change in elevation (h). If M is in kg, g is in m/s^2 and h is in meters, the answer will be in Joules.

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